DROUGHT UPDATE

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UNPRECEDENTED DROUGHT

An era of firsts•State Water Resources Control Board (SWRCB) issue

emergency regulations

• Lowest Sierra snowpack on record

• Lake Mead at lowest levels since it was filled

•Worst drought in history

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U.S. DROUGHT MONITOR - CALIFORNIA

Note: The Drought Monitor focused on broad-scale conditions. Local conditions my vary.

Source: The U.S. Drought Monitor is jointly produced by the National Drought Mitigation Center at the University of Nebraska-

Lincoln, the United States Department of Agriculture, and the National Oceanic and Atmospheric Administration. Map courtesy

of NDMC-UNL.

Abnormal Drought Moderate Drought Severe Drought Extreme Drought Exceptional Drought

2012 2013 2014 2015

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SNOWPACK: 2013-2015

2013 2014 2015

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THE NEW NORMAL

Current state board regulations end February 2016

Potential for extension of regulations through October, 2016

State Board to propose permanent regulations January 2016

January 2014

Governor declared

State of Emergency

due to drought

July 2014

SWRCB approves

emergency regulation

requiring mandatory

watering days

August 2014

SWRCB approves

MNWD Water

Conservation Alternate

Plan

April 2015

Governor issues executive order

requiring 25% statewide water

reductions

MNWD new rates and water budget

reductions go into effect

May 2015

SWRCB adopted regulations to

implement the Governors executive

order. MNWD required to achieve

20% water use reduction

June 2015

MNWD Water

Shortage Contingency

Plan Stage 1 in effect

July 2015

MNWD Water

Shortage Contingency

Plan Stage 2 in effect

November 2015

Governor proclaims

drought regulations to

extend through

October 2016

RESERVOIR LEVELS

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DROUGHT ACTIONS

• Alternate plan approval by State Water Resources Control Board

• Water Budget Based Rates

• Water Shortage Contingency Plan

• Customer communications

• Recycled Water Master Plan

• Partnership with cities

• Media

Tier 1 Tier 5Tier 4Tier 3Tier 2

Water Shortage Contingency Plan Stage 2

Penalty

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ACTIONS: SHORT-TERM WITH LONG-TERM IMPACTS

Immediate• Water Shortage Contingency Plan

• Outdoor watering reminders

• Irrigation controllers

• Irrigation system

• Turf removal

• CA friendly landscaping

• HOA communication

Long-term• Shifting mindset and behavior

• Responsible aesthetics

• Market transformation

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LOOKING INTO THE FUTURE

Even with El Nino, we will still be in a drought 2014 was the driest its ever been in 500 years

2015 had the lowest snowpack in 500 years

Conservation is the new normal

HOA workshop and meetings

LiveSmart Event – May 14, 2016

Continue communication and outreach to the community

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RECYCLED WATER PROGRAMOVERVIEW

January 13, 2016

WHAT IS RECYCLED WATER?

Wastewater treated to waterquality levels defined by Stateof California Title 22 Health Code Regulations

District provides disinfected “tertiary” treated water approved for non-potable uses, such as landscape irrigation

GOVERNING REGULATIONS

California State Water Resources Control BoardDivision of Drinking Water and Environmental Management California Health Code Title 22 and Title 17

San Diego Regional Water Quality Control Board Issues Waste Discharge Permit

Orange County Environmental Health Agency Enforces Health Code regulations

Moulton Niguel Water District Implements all applicable regulations for site specific implementation

and permit compliance

MOULTON NIGUEL WATER DISTRICT RECYCLED WATER SYSTEM

25% of annual water usage

1,300 accounts serving about 4,000 acres

147 miles of pipes

10 pump stations

11 tanks

7,400 acre feet (2.4 billion gals) sold FY 2014-15

Recycled Water Produced at Treatment Plants

Secondary

WASTEWATER TREATMENT BASICS

Primary

Conventional Treatment

Source Control &

Collections

Ocean Release

Preliminary Disinfection

Secondary

Tertiary

WASTEWATER TREATMENT BASICS

Primary

Conventional Treatment

Source Control &

Collections

Reuse

Ocean Release

Preliminary Disinfection

Tertiary Treatment

REGIONAL TREATMENT PLANT

RECYCLED WATER SALES

RECYCLED WATER USE SITES

Golf Courses

Parks

Medians

Schools

HOA Landscaping

CURRENT RECYCLED WATER ACTIVITIES

Annual inspections About 600 inspections per year

Recycled Water System Extension Project 32 services and 102 acre-feet per year

Project cost: $2.2 million

$500,000 Proposition 84 Grant

Awarded November 2015

Retrofits

Recycled Water Master Plan

RECYCLED WATER MASTER PLAN

Long-Term Planning Document

Support Grant Applications

Metropolitan Water District Local Resources Program Funding

Regional System Partnering Opportunities

Roadmap for Capital Improvement Program Implementation

Scope of Work:

Hydraulic model update

Condition Assessment

Existing and Future System Evaluation

Recycled water market and demand assessment

Seasonal storage needs

System optimization

Regional / Interagency Connection Assessment

REUSE – FUTURE OUTLOOK

Indirect Potable Reuse (IPR)

Direct Potable Reuse (DPR)

INDIRECT POTABLE REUSE CONCEPT

Urban Water Use

WW Treatment

AWT = RO + UV

Nature

Water Treatment

DIRECT POTABLE REUSE CONCEPT

Home

WW Treatment

AWT = RO + UV

Nature

Water Treatment

Complete Water Treatment

POTABLE REUSE

Indirect Potable Reuse (IPR) Advanced Water Treatment

Meets Potable Water Drinking Standards

Environmental Buffer

“Indirectly” introduced into potable water system

Direct Potable Reuse (DPR) Advanced Water Treatment

Meets Potable Water Drinking Standards

“Engineered Buffer”…excludes an environmental buffer

“Directly” introduced into potable water system

QUESTIONS?